| Date | IP Address |
| 2016-10-31 | 172.224.3.238 (ClassC) |
| 2017-12-25 | 23.8.4.49 (ClassC) |
| 2018-05-19 | 13.33.74.96 (ClassC) |
| 2018-05-19 | 13.33.74.71 (ClassC) |
| 2018-05-19 | 13.33.74.88 (ClassC) |
| 2018-05-19 | 13.33.74.92 (ClassC) |
| 2018-06-07 | 54.192.2.230 (ClassC) |
| 2018-10-05 | 13.33.92.194 (ClassC) |
| 2018-10-05 | 13.33.92.27 (ClassC) |
| 2019-04-09 | 52.84.134.247 (ClassC) |
| 2024-07-20 | 18.161.6.26 (ClassC) |
| 2024-08-28 | 18.161.6.9 (ClassC) |
| 2024-11-24 | 18.161.6.42 (ClassC) |
| 2025-01-26 | 13.224.14.92 (ClassC) |
| Date | Domain | IP |
| authsmtp.kofferstore.nl | 2024-07-02 | 18.161.6.9 |
| mailsrv.kofferstore.nl | 2024-10-08 | 13.224.14.64 |
| www.kofferstore.nl | 2024-07-20 | 18.161.6.26 |